Abstract
A series of compression experiments were performed on borosilicate and soda-lime glass using a triaxial compression Kolsky bar. The triaxial compression Kolsky bar differs from a traditional Kolsky bar by having two pressure chambers, one enclosing the specimen and the other enclosing the end of the transmission bar, so that a specimen may be pre-stressed axially and radially before a dynamic axial load is applied. The result is a modified Kolsky bar capable of measuring axial deformation and axial stresses of a specimen at various strain rates under a range of confinement pressures. Borosilicate glass was subjected to triaxial confinement pressures of 25 MPa, 50 MPa, and 100 MPa at a strain rate around 1500 s-1, and soda-lime glass was subjected to triaxial confinement pressures of 25 MPa, 50 MPa, and 75 MPa at a strain rate of around 1100 s-1. These results were compared to unconfined experiments at similar strain rates, as well as unconfined experiments on a servo-hydraulic machine at a strain rate of 0.001 s-1. It was concluded that glass under compression is not sensitive to strain rate, and glass confined triaxially has a higher strength than unconfined glass. However, strength did not vary much over the range of confinement pressures observed.
Degree Type
Thesis
Degree Name
Master of Science in Aeronautics and Astronautics
Department
Aeronautics and Astronautics
Committee Chair
Weinong W. Chen
Date of Award
10-2015
Recommended Citation
Chojnacki, John T., "Dynamic triaxial compression experiments on borosilicate and soda-lime glass" (2015). Open Access Theses. 761.
https://docs.lib.purdue.edu/open_access_theses/761
First Advisor
Weinong W. Chen
Committee Member 1
R. Byron Pipes
Committee Member 2
Michael Sangid